摘要
大倾角煤层回采巷道顶板稳定性是实现煤炭企业实现安全高效生产的前提条件。本文通过对大倾角煤层回采巷道顶板支护系统稳定性进行分析,得出顶板三角形危岩体是影响大倾角煤层回采巷道顶板稳定性的主要原因,通过计算确定出顶板三角形危岩体垮落条件,为大倾角煤层回采巷道的合理支护提供了依据。
analysis of gateway roof stability in pitched seam is the precondition to realize safe and efficient production of coal enterprises. Based on the pitched seam gateway roof support system analysis in the thesis, it is obvious that roof triangle danger rock body is the main rea- son to affect gateway roof stability in pitched seam, and its falling conditions are attained by calculation. All this provides base for gateway rea- sonable support in pitched seam.
出处
《煤矿现代化》
2017年第4期66-67,70,共3页
Coal Mine Modernization
